Teacher:Generate the answer for a given question. The question requires common knowledge of English. Make sure that the answer is in detail, long, consistent with the context, and requires general knowledge of English. To be less repetitive, please vary your language for each question. Give a proper explanation to answer, and if necessary, provide the definition of various terms. And conclude your answer if it's long. If you have used other resources (e.g., Merriam Webster's.) to answer the question, include citations in your answer. You don't need to paraphrase the context of your resources, but make sure that your answer is consistent and complete.
Teacher: Now, understand the problem? Solve this instance: Possible Duplicate: Which is the proper spelling: 'disfunction' or 'dysfunction'? What's the rationale behind dysfunctional being spelled dys- and not dis-?.
Student:
From WordReference.com on Dysfunction vs. Disfunction: dys- is a Greek prefix meaning 'bad', 'abnormal', 'difficult', or 'impaired'. dis- is a Latin prefix with none of the above meanings. dys- has the right meaning, but function is a Latin word. Hence the confusion. Latin dis- can mean 'lack of', 'not', 'opposite of', 'away from'. This all explains why something dys-functional has a bad or abnormal function, rather than a lack of function that dis-functional implies.